public void Restore(IMemento memento)
{
if (!(memento is ConcreteMemento))
{
throw new Exception("Unknown memento class " + memento.ToString());
}
this._state = memento.GetState();
Console.Write($"Originator: My state has changed to: {_state}");
}
private void UndoConfig_OnClickCallback()
{
caretaker.Undo();
ConcreteMemento memento = caretaker.getCurrent() as ConcreteMemento;
if (memento != null)
{
config = memento.GetState();
}
UpdateTank();
}
public override void Load()
{
config = new TankConfig(0, 0, 0, 0);
originator = new Originator(config);
caretaker = new Caretaker(originator);
caretaker.Backup();
logo = CreateEntity(new Sprite(Image.FromFile("../../res/logo.png"), new Vector2(380, 80), new Vector2(500, 250))) as Sprite;
UpdateTank();
//Color edits
colorDown = CreateEntity(new Button(300, 260, 15, 15, null, "<")) as Button;
colorUp = CreateEntity(new Button(400, 260, 15, 15, null, ">")) as Button;
colorDown.OnClickCallback += ColorDown_OnClickCallback;
colorUp.OnClickCallback += ColorUp_OnClickCallback;
//Chassis edits
chassisDown = CreateEntity(new Button(300, 300, 15, 15, null, "<")) as Button;
chassisUp = CreateEntity(new Button(400, 300, 15, 15, null, ">")) as Button;
chassisDown.OnClickCallback += ChassisDown_OnClickCallback;
chassisUp.OnClickCallback += ChassisUp_OnClickCallback;
//Turret edits
turretDown = CreateEntity(new Button(300, 280, 15, 15, null, "<")) as Button;
turretUp = CreateEntity(new Button(400, 280, 15, 15, null, ">")) as Button;
turretDown.OnClickCallback += TurretDown_OnClickCallback;
turretUp.OnClickCallback += TurretUp_OnClickCallback;
//Tracks edits
tracksDown = CreateEntity(new Button(300, 320, 15, 15, null, "<")) as Button;
tracksUp = CreateEntity(new Button(400, 320, 15, 15, null, ">")) as Button;
tracksDown.OnClickCallback += TracksDown_OnClickCallback;
tracksUp.OnClickCallback += TracksUp_OnClickCallback;
saveConfig = CreateEntity(new Button(300, 360, 120, 15, null, "Save tank configuration")) as Button;
saveConfig.OnClickCallback += SaveConfig_OnClickCallback;
undoConfig = CreateEntity(new Button(300, 390, 120, 15, null, "Undo tank configuration")) as Button;
undoConfig.OnClickCallback += UndoConfig_OnClickCallback;
showHistory = CreateEntity(new Button(300, 420, 120, 15, null, "Show config history")) as Button;
showHistory.OnClickCallback += ShowHistory_OnClickCallback;;
backButton = CreateEntity(new Button(10, 400, 40, 15, null, "BACK")) as Button;
backButton.OnClickCallback += BackButton_OnClickCallback;
}
public Originator(TankConfig state)
{
this._state = state;
Console.WriteLine("Originator: My initial state is: " + state.ToString());
}
public ConcreteMemento(TankConfig state)
{
this._state = state;
this._date = DateTime.Now;
}